<!-- 搜索框 -->
<div id="search_box">
  <div id="index_subtitle">二手物品发布 & 交易市场</div>
  <button id="publish" class="btn btn-outline-light" type="button">
    <img src="" alt="">
    <a href="../Publish/publish.html">发布物品</a>
  </button>
  <form id="search" class="container" action="">
    <div class="input-group">
      <input id="search_input" type="text" class="form-control" placeholder="搜索你想要的东西" aria-label="Search what you want"
        aria-describedby="basic-addon2">
      <div class="input-group-append">
        <button class="btn btn-outline-light" type="button">
          搜索
          <span class="mdi mdi-magnify"></span>
        </button>
      </div>
    </div>
    <div id="associative_box" class="row col-12 col-sm-6 mt-2">
      <ul id="associative_list"></ul>
    </div>
  </form>
</div>
<!-- 搜索框 -->